JPS607976Y2 - Parking brake pedal stopper - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a return stroke stopper for a parking brake pedal in a foot-operated parking brake system for an automobile.

Conventionally, the stopper for the return stroke of the parking brake pedal was generally a rubber block fixed to a fixed stopper support member, and the parking brake pedal was brought into contact with this rubber block.
Because the parking brake pedal has a large return rotational force, a loud noise is produced when the parking brake pedal collides with the rubber mass.

This noise can be reduced by reducing the hardness of the rubber lump, but the overstroke of the parking brake pedal after the parking brake pedal collides with the rubber lump becomes large, making it difficult for the parking brake pedal to return to its predetermined return position. A problem arises in that the warning switch fixed to the vehicle body to detect whether or not the vehicle is running is damaged.

Therefore, as described in JP-A No. 54-22624, during the return rotation of the parking brake pedal, the parking brake pedal collides with the parking brake pedal near the end of its travel, and rotates due to the rotational force of the parking brake pedal, causing the parking brake pedal to rotate. A stopper that terminates the return stroke of the parking brake pedal using a lever pressed against the side surface has been proposed, and a stopper with two levers has been put into practical use.

However, each lever is pivoted to a fixed support member with a pin, and each lever is rotated by a spring in the direction away from the side of the parking brake pedal, so there are many components and assembly is difficult. In addition, there are problems such as a considerable amount of noise being generated when the parking brake pedal collides with the lever.

The object of the present invention is to obtain a stopper that solves the above problems, and examples thereof will be described below.

In FIG. 1, a bracket 1 is fixed to the vehicle body, and a parking brake pedal 2 is pivotally connected to it by a pin 3.

This parking brake pedal 2 is connected to a control wire 4 of the parking brake, and when the parking brake pedal 2 is depressed from the return position shown by the solid line as shown by the two-dot chain line, the rotation of the parking brake pedal 2 causes the control wire 4 to is pulled up and the parking brake is activated.

In order to automatically maintain the operating state of this parking brake,
A ratchet mechanism 5 is disposed between the parking brake pedal 2 and the bracket 1.

This ratchet mechanism 5 includes a toothed plate 6 fixed to the parking brake pedal 2, a pawl 7 pivotally connected to the bracket 1 with a pin 9, and rotates the pawl 7 so as to engage the pawl 7 with the teeth of the toothed plate 6. including a spring 8 and a parking brake pedal 2
The engagement between the pawl 7 and the teeth of the tooth plate 6 changes in response to the depression of the parking brake pedal 2, thereby preventing the parking brake pedal 2 from returning from the depressed position.

In order to return the parking brake pedal 2 from the depressed position to the return position, it is necessary to rotate the pawl 7 counterclockwise around the pin 9 to release the engagement between the pawl 7 and the tooth plate 6. For this purpose, a lever 10 is pivotally connected to the bracket by a pin 11.

This lever 10 has a bend 12 which, when pivoted counterclockwise about a pin 11, causes the pole 7 to pivot counterclockwise about the pin 9, and at its lower end a manual lever 13. It is pivoted to the left end of the

Therefore, by pulling the manual lever 13 to the right, the lever 10
is rotated counterclockwise around the pin 11, the engagement between the pawl 7 and the tooth plate 6 is released, and the parking brake pedal 2 is rotated to the return position by the return operating force of the control wire 4.

A stopper 14 for terminating the return stroke of the parking brake pedal 2 is attached to a stopper support plate 15 fixed to the bracket 1.

The stopper 14 has a pair of lever parts 16 and 17, each of which is made up of a rubber body A and a core metal B that provides rigidity to the rubber body A as a lever.

The rubber main body A has a force point a that collides with the parking brake pedal 2 from near the end of its travel during return rotation of the parking brake pedal 2, and a fulcrum part that is supported in contact with the stopper support plate 15, and the parking brake It has an action point C that comes into pressure contact with the side surface of the pedal 2, and a lug d that is inserted into a hole 18 of the stopper support plate 15 and is locked thereon is protruded from the fulcrum.

The lever portions 16 and 17 are integrally continuous with each other at the force point a of the rubber body A, and this continuous portion e has elasticity to move each lever portion so that its point of application C is separated from the side surface of the parking brake pedal 2. It is shaped to rotate.

FIG. 3 shows the state of the stopper 14 and the relationship between the stopper 14 and the parking brake pedal 2 when the parking brake is in operation. The point C is held at a rotational position such that the parking brake pedal 2 is located outside the rotational trajectory of the parking brake pedal 2.

When the return rotation restriction of the parking brake pedal 2 is released in FIG. Lever part 1 due to return rotation force
6 and 17 are rotated around their respective fulcrums, and the lever parts 16 and 17 move their respective application points C to the parking brake pedal 2.
The parking brake pedal 2 is pressed against the side surface of the parking brake pedal 2 and the parking brake pedal 2 is clamped thereto, thereby completing the return rotation of the parking brake pedal 2 (see FIG. 2).

As is clear from the above description, the stopper 14 of the present invention is handled as a single component during assembly, and has excellent assembly performance.

Since it is the rubber main body A that comes into contact with the stopper support plate 15 and the parking brake pedal 2, only a small sound is generated when it collides with the parking brake pedal.

Furthermore, since the structure is simple, there are few failures and it can be manufactured at low cost.

In the above embodiment, the core metal B is completely embedded in the rubber body A, but it may be exposed on the surface of the rubber body A as long as it does not come into direct contact with the stopper support plate 15 or the parking brake pedal 2. There is no problem.

Further, the hole 18 of the stopper support plate 15 is formed in the lever part 16.
The hole may be made elongated so as not to apply a large shearing load to the protrusion d when the protrusion 17 rotates.

[Brief explanation of drawings]

FIG. 1 is a side view of an embodiment of the present invention, FIG. 2 is a cross-sectional view taken along the line ■--■ in FIG. 1, and FIG. 3 is a cross-sectional view of the same location as FIG. 2: Parking brake pedal, 14: Stopper support plate, 16
・17: Lever part, A: Rubber main body, B: Core metal, a: Force point part, b = fulcrum part, C: active part.

Claims (1)

[Scope of utility model registration request] It is supported by a fixed stopper support member, and collides with the parking brake pedal from near the end of its travel during the return rotation of the parking brake pedal, and rotates on the stopper support member due to the rotational force of the parking brake pedal to depress the parking brake pedal. In a parking brake pedal stopper that includes a pair of lever parts that stop the return rotation of the parking brake by being pinched from both sides, each of the pair of lever parts is supported at a fulcrum in contact with the stopper support member. a rubber body having a force point portion that abuts against the parking brake pedal, and an action point portion that presses against a side surface of the parking brake pedal; and a core metal for providing rigidity as a lever to the rubber body. The main bodies of the lever parts are integrally continuous with each other at the force point, and this continuous part rotates the lever parts in a direction in which the force point part moves away from the side surface of the parking brake pedal due to its elasticity. A stopper for a parking brake pedal, characterized in that it is shaped so that it can be moved.